[RESOLVED] Form Validation - My Syntax Offbase?

[suttercain]

I am trying to use form validation to verify a zip code:

<?php
if (($_POST["zip_code"] == "") || (!ereg("^\d{5}$",($_POST["zip_code"])))) {
		$errors['zip_code']="<font color='red'>*</font>";
}
?>

Even if I fill out the zip code section of the form with a five digit number it will not process the form. Instead it echos the error "Zip Code*" which is right... if I didn't enter 5 digits or I entered AAAAA. But since I entered five numbers it should process.

This is my first time trying to use regex but it appears "^\d{5}$" is right for a zip code. Maybe I have it placed in the form incorrectly?

Thanks in advance for any help or suggestions.

[bradgrafelman]

Probably because the ereg() function's don't support the \d shorthand for digits.

Besides, you should be using [man]PCRE[/man] and never, ever, EVER using the ereg_ functions! Try something like this instead:

if ($_POST["zip_code"] == "" || !preg_match('/\d{5}/',$_POST["zip_code"])) {

Note that I also removed some of your superfluous parenthesis.

[Weedpacket]

Couldn't ZIP codes be 9 digits long, with a hyphen?

Don't look at me; postcodes here are four digits, so I guess I'm not in the form's audience.

BTW: EEewwww.... <font> tags...

[bradgrafelman]

Well, if you're talking about the ZIP code plus the postal code, then technically it could be 10 ("12345-9876").